Printing telegraph apparatus



May 23,1944. L M, POTTS 2,349,674

PRINTING TELEGRAPH APPARATUS Filed Aug. 13, 1942 2 Sheets-Sheet l FIG. 2

INVENTOR I LOUIS M- POTTS E BY = ATTORN 1944 L M. POTTS PRINTING TELEGRAPH APPARATUS Filed Aug. 15, 1942 2 Sheets-Sheet 2 FIG.6

FIG.5

FIG. 1-

S T T m N NM m E VB u m W A L Patented May 23, 1944 U N l T E D STT E S [P PRINTING TELEGRAPH APPARATUS Louis M. Potts, Evanston, Ill., assignor to Teletype Corporation, Chicago, 111., a, corporation of Delaware Application August 13, 1942, Serial No. 454,680

22 Claims.

This invention pertains to printing telegraph systems and apparatus, and more particularly to the remote control of tabulating operations in printing telegraph receivers.

The principal object of the invention is to provide in a recording device a tabulating mechanism which may be conditioned for operation by remote control, and which is operable automatically thereafter at predetermined intervals for controlling tabulation recording.

A feature of the invention resides in providing means for establishing the column positions automatically at remote stations under the control of any one of a series of interconnected stations. With the arrangement according to the present invention, it is possible, under the control of any one station, to establish identical tabulating stop conditions at all of the remaining stations on a signal line.

The above and other objects of the present invention are accomplished by the provision in a printing telegraph apparatus of the type disclosed in Morton et al. Patent No. 1,904,164, issured April 18, 1933, of a tabulator bar which extends across the front of the machine and is pivotally carried by brackets mounted in the typing unit and capable of swinging toward and away from the type carriage. The tabulator bar carries a number of settable members which determine the positions at which the type carriage is automatically spaced a plurality of character spaces during the time interval corresponding to a single character code signal. Mechanism is provided in the recorder according to the present invention for conditioning the settable members under the control of a remotely located transmitting station. The tabulating mechanism according to the present invention is similar to that shown in U. S. Patent No. 2,076,864 issued to A. H. Reiber.

According to the present invention, a stop member or settable member is provided on the tabulator bar for each character space in the line of printing, instead of a limited number of adjustable stops as disclosed in the afore-mentioned Reiber patent. A setting mechanism is provided which operates in response to a special code signal to rock selected ones of said steps into a position indicative of predetermined column stop positions. In response to another specia1 code signal, a clear-out device is operated, which returns all previously selected stops to their normal unselected position. Briefly, the opera-tion of such a device is as follows: It is assumed that two or more printers so equipped are connected in the signal line, and when the operator desires to condition the printers for tabulation opera tion, a carriage return signal is transmitted which causes the carriages of all the printers to be returned to the beginning-of-line position. A clear-out signal is then transmitted, whereupon all of the previously selected tabulator stops are returned to their unselected positions. The operator then spaces the carriages of all the printers in the line, by means of a series of spacing code signals, to the first column position where it is desired to set a stop member. A setting key is then depressed, whereupon a special signal is transmitted to all interconnected printers (in-- cluding the home printer), in response to which the correspondingly positioned tabulator stop member in every printer is set. Ihe operator then spaces the carriages to the second desired position and, upon depression of the setting key, a second tabulator stop member is set correspondingly in all of the printers. After the tabulator stop has thus been set as desired, the operation of the tabulator mechanism proceeds as disclosed in the previously referred to Reiber patent.

A more complete understanding of the invention may be had from the following description, taken in conjunction with the accompanying drawings wherein,

Fig. 1 is a schematic circuit diagram showing interconnected telegraph printers;

Fig. 2 is a partial front elevation of the printing apparatus showing the application of the tabulating mechanism according to the present invention;

Fig. 3 is a partial plan view showing the tabulating mechanism;

Fig. 4 is a transverse cross-sectional view of the printer taken approximately through the vertical center line of Fig. 2;

Fig. 5 is a fragmental sectional view of the tabulator setting mechanism; and

Fig. 6 is a fragmental sectional View of the tabulator stop restoring mechanism.

In the accompanying drawings like reference characters indicate similar parts throughout the several views. For a complete understanding of details not disclosed herein and which form no part of the present invention, reference may be had to said Morton et a1. and Reiber patents.

In Fig. 1 is shown schematically a circuit diagram in which the signal line is indicated as H, with telegraph apparatus i2 and [3 connected in said line. Each telegraph apparatus includes a receiving selector magnet l4 and a transmitting device indicated by the numeral l5. Having reference to Figs. 2 and 4, the printing apparatus to which the tabulating mechanism of the present invention is applied comprises a typing unit (shown generally in section in Fig. 4) which includes a primary selecting mechanism, a magnet (not shown) similar to magnet Q shown in Fig. 4 of the Morton et al. patent, and a secondary selector or selector vane assembly indicated generally as it. The selector vane assembly controls, through a series of bell cranks ii, a corresponding series of curved code bars l3 carried in a movable type carriage l9. As set forth in the Morton et a1, patent, this type carriage I9 is movable longitudinally with a stationary platen indicated generally as 2!. The type carriage l also carries a ribbon feed mechanism indicated generally as 22,

A motor (not shown) supplies power to a main operating shaft 23 (Fig. 4). The motor shaft 23 carries a spacing gear 24 and a spacing ratchet 25 which comprise a part of the spacing mechanism such as shown in Figs. 18 and 19 of the Morton et a1. patent. As clearly described in said patent, the spacing mechanism controls through gear 26, a shaft 21, gear 28, and rack 29, the movement of type carriage !9 to form character spaces, acting in this movement to wind up the carriage return spring mechanism indicated generally as 3|. Upon receipt of the carriage return signal, function bar 34 is actuated selectively in the manner described in the Morton et al. patent so as to permit spring 35 to rotate lever 36 suddenly until it abuts the stop 31 to raise, through bell crank 38, portion 39 of grab clutch 4|. The carriage return mechanism 3| is thereupon permitted, due to the energy stored up therein, to return the carriage l9 to its normal or beginning-of-line position. Positioned parallel to the main operating shaft 23 is a rock shaft 42 on which are carried various mechanisms, including a printing bail 43, a function bail 40, and the escape mechanism for the spacing mechanism previously referred to. The printing bail 43, which is actuated by a printing spring (not shown) in proper timed relation in the operative cycle, functions to reciprocate a pull bar operating member 44 to cause the operation of a type bar, as fully described in Patent No. 1,904,164.

The selector vanes l6 control a series of function levers among which are provided especially for accomplishing the object of the present invention, a column setting function lever 33 and a tabulating function lever 45 which are pivoted on a common pivot rod 46 and are assembled in a slot in the function lever comb 41. Each of the function levers 45 and 33, like the rest of the function levers of the series is provided with an individual spring 46 tensioned between it and the printer frame and which tends to rotate the function levers 45 and 33 about pivot 46 but, as clearly set forth in Patent No. 1,904,164, i restrained by the function lever bail 46 acting through rod 56 on arm 60.

Referring to Fig. 4, it will be noted that the ratchet 25, which is frictionally connected to the constantly rotating shaft 23, is provided with three teeth 6!, Ma, and 6lb, the escapement of which will allow the type carriage l9 to be moved forward one step or character space for each actuation of the printing bail 43. As indicated, the escapement mechanism comprises levers 62 and 63, pivotally mounted on bail shaft 42, and lever 64 is adjustably fixed to the printing bail 43. Spring 65 normally tend to rotate levers 62 and 63 in opposite directions, since it is common to both levers. Lever 62 is normally urged by spring 65 in a counterclockwise direction so that laterally disposed end 66 engages tooth 6| of ratchet 25, thus arresting the rotation of said ratchet. Lever 63 is normally held out of engagement with ratchet 25 against the tension of spring 65 by the action of lever 64 against a laterally disposed end 61 of lever 63.

Lever 64 is pivotally connected to printing bail 43 at 68 and is provided at 69 with a slot and screw adjusting means whereby the correct relative position of escapement levers 62 and 63 with respect to ratchet 25 may be determined, The

spacing operation occurs immediately following the printing of a character in the following manner:

Upon the printing of a character, lever 64 is caused to rotate slightly in a clockwise direction with printing bail 43 which moves clockwise about the axis of bail shaft 42, thereby transferring this motion to lever 62 through its laterally disposed end H, tripping its end 66 out of engagement with tooth 6| and permitting ratchet 25 to rotate slightly in a clockwise direction under the influence of a friction clutch through which the ratchet 25 is connected to the main driving shaft 23, until arrested by the engagement of tooth cm with laterally disposed end 12 of lever 63, which lever by movement of lever 64 was rendered free to rotate in a clockwise direction under the tension of spring into the path of oncoming tooth 6la. Ratchet 25 is thus restrained from rotation by lever 63 until the completion of the printing of a character, at which time printing bail 43 and associated lever 64 are caused to rotate in the opposite direction by the action of a printing cam (not shown). Restraint of lever 62 by lever 64 through end H is thereby removed, permitting lever 62 to rotate in a counterclockwise direction under the influence of spring 65 into the path of tooth (ill) of ratchet 25. During this counterclockwise movement of lever 64, and immediately after the afore-mentioned release of lever 62, lever 63 is caused to rotate in a like direction due to the action of lever 64 on end 6'! thereof, thereby disengaging end 12 of lever 63 from tooth Ma and allowing ratchet 25 to continue its movement until arrested by the engagement of end 65 of lever 62 with tooth 6Ib.

It is obvious that since spacing gear 24 and ratchet 25 are integrally connected to each other, said gear 24 will have normally the same intermittent or step-by-step motion as was hereinbefore seen to be imparted to ratchet 25. Gear 24 is meshed with gear 26, which is loosely mounted on vertical shaft 27, and is operably connected thereto through the instrumentality of a jaw clutch 4|. Gear 24 and gear 26 are so related that one-third revolution of gear 24 will rotate gear 26 through a distance which, through gear 28 and rack 29 causes the type carriage i 9 to be stepped forward one character space.

From the foregoing, it will be observed that character spacing takes place automatically with the printing of each character; that is, the spacing function is merged into the printing operation. It is well known that there is a code combination allotted to each type bar; but it is possible, however, to employ a code combination, commonly known as the spacing signal, which is identified with no type bar, but which will nevertheless initiate the printing operation. Therefore, the spacing between words is accomplished in exactly the same manner as set forth when a spacing signal is received, except that no type bar is operated and consequently no character is printed.

In accordance with the present invention, con.- tinuous spacing may be effected upon the receipt of a code combination known as the tabulating code combination which functions to initiate the operation of the tabulating mechanism.

The automatically operated tabulating arrangement of the present invention comprises a tabulator bar 8! extending across the front of the printing apparatus, as shown in Fig. 2, which is provided with depending portions 82 and 83 through which bar BI is pivotally mountedon bracket 84 carried in the printer. frame. Thus, tabulator bar 8! is adapted to be swung toward and away from the type carriage I9. Carried on bar BI is a comb bar 85. through which is threaded a rod at on which are pivotally supported a plurality of T-shapedstop members 81. The number'and arrangement of stop members 81 is such thatthere is one stop member coincident with each character spacing position of. the type carriage l9. The type carriage ISin itscharactor-spacing movement, as previously described, travels in a step-by-step movement equal in extent to the distance between the stop members 81.

Each of the stop members?! is provided with a vertical arm 88 which cooperates with a member 89 integral and movable with the carriage I9. The stop member 87 is also provided with ahorizontal arm 9! which cooperates with a cam member 92 (Figs. 3 and 4-.) which is pivoted. at $3 on a portion 94 integrally formed. on a bar 95, which is comparable to bar '53, shown in Fig. lof Patent No; 1,904,164, and which is employed for retaining the bell crank levers II in operable relation to the vanes I6. bar 95 and bell cranks H, is movable with the type carriage ii! for carriage spacing, and nor-- mally tends to rotate in a clockwise direction (as viewed in Fig. 3) about its pivot 93 due to the action of a spring 95, but its clockwise rotation is limited by the coaction of a stop pin 91, carried thereon, with the end of bar 95. Consequently, upon the rightward movement of type carriage It (as viewed in Figs. 2 and 3), cam 92,

due to its limited rotatability in a clockwise direction, will, by its camming action on a selected stop member 81 (when stop member 31 will have been actuated into the path of cam 92 during the tabulation operation as will hereinafter be described), rock the tabulator bar 8! outwardly (or away from the cam 92) but upon the leftward movement of type carriage l9, cam 92, upon striking each of the series of stop members $31, which are in their operative position as will presently appear, will be rotated counterclockwise against the action of'spring 9%. The stop members 3? are also provided with a short horizontal arm terminating in a pointed extremity to cooperate with a jockey or retaining spring at, there being a spring 98 individual to eachstop member 81. Positioned below the arms 9i of the stop members 81 is a restoring bail 95! which is in the form of a looped member pivoted at II)! and I62 (Figs. 2 and 3). Bail 99 is normally retained in its counterclockwise position (as shown in Fig. 4) by a spring Hi3, and is operated periodically in a clockwise direction to rotate all of the previously actuated stop members 81 to their clockwise po-v sition, shown in Fig. 6.

The column setting and restoring operations. as well as the tabulating operation, are controlled by respective function levers, as will. now be described. As previously mentioned, the column setting operation is controlled by a column se ting function lever 33 provided with a tail por tion I04 which cooperates with a push bar I95 in alignment thereabove. Push bar I05 is provided with a notch Hi6 which cooperates. in a manner described in the aforementioned Fatent No. 1,904,164, with a bail member IIIE. Push bar IE5 is suitably guided in comb member t! and in member 84, and is pivotally connected at its right end (as viewed in Fig. 4) with the depending arm I88 of an extension I39 integral with CamtZ, like member 69,

member BI. Depending extension N18 is pivotedat I I I at a point coincident with the pivot points H2 and H3 of depending portions tz'and 83,re.-

spectively. Depending extension M39 is pivoted at III to a bracket IHI fixed to the frame 84.-

Thus, when the function lever 33 is to be selected,- upon the receipt of the column setting code com-,

1 spring 48, andsince the vanes It are set to correspond with the notches in the, front vertical edge of the function lever 33, suflicient rotation in a clockwise direction is imparted to'lever'33 so as to cause the rear extremity of bail portion IM to be raised, thus lifting the push bar'IflS so as to bring the notch Hi6 thereon into the path of the oscillating function bail am. When the bail)? is actuated leftwardly, the push bar I05 is correspondingly actuated so that the bar BI, through the arm I08 of extension M39, is rocked clockwise about the pivots I I2 and 5 It (as viewed in Fig.4). When bar 8! is thus actuated in a clockwise direction as viewed in Figs. 4 and 5. all of the stop members 61 are likewise actuated rightwardly to bring the arm 8% of the stop member 6-7 that is in register with the member 89 into contact therewith so that the resistance offered by the member 89 against the rotation of bar 8i will cause the particular stop member 81 in registry therewith to yield, thus causing counterclockwise rotation of that particular stop member 81v so as to bring the arm cooperating with.

the detent spring98 into cooperation with the upper. portion of said V-shaped detent. In this manner, the arms 9|, which normally are out of the path of the cam 92, are brought into cooperative relationship with the cam 82 (Fig. 4). At the conclusion of the column setting operation, the function bail M11 is returned to its rightward position, and the push bar it, through the instrumentality of the spring H5 (Fig. 4), is restored to its normal rightward position. This column setting operation is repeated until all the stops 8'1 required for thetabulated matter to be subsequently printed are set.

After all of the column setting operationshave been performed, and preparatory to the tabulation operation, the carriage return signal is received to cause the type carriage I9 to bereturned to its beginning-of-line position under the influence of carriage return mechanism 3|. Then, after the line of printing has been started and the message matter comprising the first column has been printed, the tabulation signal is received which effects the selection of the tabulating function bar 65, in a manner described in the Reiber Patent No. 2,076,864.

However, the tabulating operation wiil be briefly described for the purposes of this invention.

Tabulator bar 8! is also provided, intermediate the depending portions 82 and 63 (Fig. 2) and suitably positioned relative to function lever 45. with another depending portion Ht. Attached to and depending from portion H6 is a bar III, the lower end of which is provided with aperture I i8 having its upper left-hand corner (as viewed in Fig. 4) conformed so as to provide a reentrant stepped portion H9. The tabulator bar 8I..n0r

mally tends to move toward the printing apparatus due'to the action of the spring II5.

Cooperating with the stepped portion H9 is a laterally disposed portion or extremity I2I (Fig. 2) of one arm I22 of a lever I23 pivoted at I24 on a support I25 secured to the function lever comb 41. At the end of arm I26 of lever I23 is rigidly carried a vertically extending member I21, the upper end of which is provided (in the present embodiment) with an open ended slot adapted to engage a pin I28 carried by the escapement lever 62.

Function lever 45 is provided with a rearwardly extending portion I29 so conformed that its extremity I3I engages the lower edge of arm I26 of lever I23 such that, when function lever 45 is permitted to rotate in a clockwise direction under the action of its spring 48 upon the proper setting of the vanes I6 in response to the tabulation code signal, the end I 3| thereof is elevated, causing lever I23 to rotate slightly in a clockwise direction (as viewed in Fig. 4) against the tension of its spring I32. The lateral portion I2I of arm I22 is thus moved downwardly, clear of the stepped portion H9, thereby permitting spring II5 to urge the tabulator bar 8| inwardly (and toward the left as viewed in Fig. 4) until wall I33 engages portion I2I. The series of stops 81 are thus moved inwardly, and arms 9| of those stops 81 which are selectively set are moved into the path of the cam member 92, for a purpose which will presently appear.

Upon the clockwise rotation of the lever I23 due to the selection of function lever 45, its arm I26 and, consequently, the portion I 21 carried thereon, will be raised, and in so doing will, through pin E28, lift escapement lever 62 out of engagement with the teeth of the ratchet 25 which, since the escapement lever 63 is prevented from engaging the teeth of the ratchet 25 due to its being held in its unoperated position by lever 64, permits the worm gear 24 to make one complete revolution instead of one-third of a revolution during the time that the main shaft 24 rotates through one revolution, and therefore the carriage I 9 will be spaced continuously a distance per revolution of the main shaft which is three times that of normal spacing so long as the escapement lever 62 is held out of operative engagement with ratchet 25, which, as previously described, is maintained in this position due to the engagement of portion I2I with the underside of stepped portion I I9. Thus, carriage I9 will be moved continuously until cam 92 thereon cooperates with the first one of the series of stops 81 which has been set, whereupon cam 92, in co operation with the arm 9I of the first encountered stop 81, will urge the tabulator bar BI outwardly (or rightwardly, as viewed in Fig. 4) thus rotating the tabulator bar assembly in a clockwise direction about its pivots I12 and H3, the effect of which is to disengage the lateral portion I2I from the stepped portion I I9, whereupon lever I23 will again be rotated in a counterclockwise direction by its spring I32 into the position shown in Fig. 4, in which event, portion I21 will again be lowered, permitting escapement lever 62 under action of spring 65 to engage one of the teeth 6|, 6Ia, or (ill) of ratchet 52. The function lever 45, however, will have been returned to its nonselected position, as shown in Fig. 4, at the completion of the first revolution or cycle of operation of the main shaft 23 by the return stroke or upward movement of shaft 50, whereat the lever 45 will be held until the reception of another tabulation code signal, pursuant to which the foregoing cycle of operations will again occur.

After the end of the line has been reached and the type carriage has been returned to the beginning-of-line position in response to the carriage return signal, a code signal combination identi-' fied with the restoring operation is received which will initiate the selection of a function lever MI. Function lever MI is comparable in design to function lever 33, in that it is provided with a tail portion corresponding to the tail portion I04. Also, positioned above the tail portion of the function lever I 4| is a push bar I42 corresponding to the push bar I 95. Push bar I42 is pivotally connected at its right extremity to the bottom of the depending portion I43 integral with the bail 99. Then, when the function lever I 4| has been selected and permitted to rotate in a clockwise direction under the infiuence of its spring 49 about pivo 6, i s ea extending portion will raise the push bar I42 to bring its notch I96 into the path of the function bail I91 so that when the bail I01 is actuated leftwardly it will engage the notch I06 and actuate the bar I42 leftwardly so as to cause, through arm I43, clockwise rotation of the bail 99 about its pivots I ill and I02 against the action of spring I93. The operating edge I45 (Fig. 6) of the bail 99 is raised so that it will cooperate with the arms 9I of all of the selected stop members 31 so as to rotate those stop members 81 clockwise, thereby restoring all of the stop members 81 to their clockwise position as shown in Fig. 6 so that they are held by the lower portion of the V shaped section of the detent springs 98. 4

9 General operation printed page, the type carriages of the intercom nected printers are returned to their beginningof-line position by the transmission of a carriage return signal which, as is well known, will effect the selection of a function lever to control the operation of the carriage return mechanism 3|, shown in Fig. 4. After returning the carriage I 9 in its beginning-of-line position the next step will be to restore the previously set tabulator stop members 81 to the nonoperated or nonselected position, as shown in Fig. 6. This is accomplished by the transmission of a code combination of signal impulses corresponding to the restoration signal which will select the function lever I4I to cause the operation of a push bar I42 associated therewith by the bail I91, which will cause, through arm I33, the rocking of the restoration bail 99 about its pivots I JI and I 92, whereby. upon the action of the bail 99 upon the arms 9! of the stop members 81, said stop members 81 will be restored to their clockwise position.

After determining the column positions desired on the page to be printed, the carriage l9 will be stepped forward in response to a series of spacing signals to the predetermined point where the first column is to begin, thus bringing member 89 into register with the particular selected stop member 81 thereat. At this time a column setting code signal will be transmitted to effect the selection of the column setting function lever 33, which will cause the push bar N35 to be raised into the path of the bail I07, which upon operation will actuate the push bar I to cause the tabulator bar 8| to be operated rightwardly (Fig. 4), or in a clockwise manner. This will cause the particular stop member 81 thereat to strike the depending extremity of member 89, and cause said stop member 87 to be actuated to its counterclockwise position to 'be held thereat by its individual detent spring 98. Then, upon the return of the bar 8| to its leftward or counterclockwise position at the completion of the column setting operation, the stop member 8? will be set so that its arm 9! Will be positioned in alignment with the cam member 92. It should be observed, as indicated in Fig. 4,,that the selected arm ill at this time Thereafter, the carriage I9 is stepped or spaced byanother series of spacing signals to the next predetermined column position, Whereat the column setting code combination will again be transmitted, and upon its reception by the receiving apparatus, the function lever 33 will again be selected to effect the rocking of the tabulator 8i and the setting of a second stop member 81. This procedure will be repeated in accordance with the number of columns necessary for the particular printing operation. After all of the column positions have been established, the carriage return signalis then transmitted to return the carriage I9 to its beginning-of-line position in readiness to effect the printing of the tabulated matter. After the message matter comprising the first column has been completed, the tabulating signal is transmitted, which upon reception by the receiver will effect the selection and operation of the tabulating mechanism function lever (it. The selection of the function lever '55 will, through arm ISI, rock the lever E23 clockwise so that the front end 12! will become lodged underneath the stepped portion H9 of the member ll'l, which will have been actuated counterclockwise by spring HE. Simultaneously the portion l2? will be raised to effect, through pin 528, the disengagement of escapement lever $2 from the tooth 6| (or Ma or Gib depending upon which tooth is in engagement). Also, arms 9! of selected'members 8'! will now be positioned into the path of cam 92 due to the counterclockwise movement of bail 81. Under this condition the type carriage i9 is free to move upon the continuous rotation of the spacing Worm gear 24 until the cam 92 strikes the first selected arm M in its path, whereupon the tabulator bar 8! Will be actuated rightwardly to swing the member ll'l inwardly or clockwise was to disengage the lateral portion it! from the stepped portion 2 i 9, thereby permitting the lever .123 to be rocked counterclockwise by its spring I32, thus bringing the escapement lever 62 down into the path of the oncoming tooth E3! (or ii i or Gib), causing the type carriage it to be stopped in its movement. At this point the carriage i9 is positioned in the next column position and printing is thereafter efiected in accordance with the predetermined columnar matter, at the completion of which another tabulating code signal is transmitted to again efiect the selection of the tabulator function lever 45 to cause the carriage l9 to again move continuously until it strikes the next selected arm 9i of a stop member Bl.

Although the present invention has been disclosed and illustrated according to a particular embodiment thereof, it is understood that further adaptations of the invention are possible,

nations of signaling impulses received successively, a carriage movable normally one character space for each recording operation, a tabulator mechanism comprising a tabulator bar cooperatively associated with said carriage, a

plurality of stop elements carried on said bar,

each stop element identified individually with a character spacing position of said carriage, a stop element setting projection on said carriage cooperable with said stop elements, means controlled by said selector mechanism and cooperable with said stop setting projection for selectively positioning said stop elements for cooperation with said carriage, and means controlled bysaid selector mechanism for causing said carriage to pass uninterruptedly through a plurality of spaces ata time under the control of said stop elements.

2. In a recorder, selector mechanism embodied therein and responsive to code combinations of signaling impulses to control recording opera.- tions, a carriage movable normally one character space for each recording operation, a plurality of stop elements, one allotted to each character space, means controlled by said selector mechanism in response to a predetermined code combination of signaling impulses for actuating said stop elements selectively in cooperation with said carriage, and means responsive to a single code combination of signaling impulses to return'all stop elements to ineffective position.

3. In a recorder, signal responsive means, a carriage movable to form character spaces, a plurality of column stop elements, a column setter carried by said carriage andcooperable with said stop elements, and means controlled by said signal responsive means to operate said plurality of column stop elements collectively toward said column setter to selectively set in-cooperation with said column setter said stop elements.

4. In arecorder, selector mechanism responsive to receive the code combinations of signaling impulses, a carriage movable normally one character space for'each recording operation, a tabulator mechanism comprising a tabulator bar cooperatively associated with said carriage, a plurality of elements carried on said bar, each element identified individually with a character spacingposition of said carriage, a projection on said carriage cooperable with said elements, means controlled by said selector mechanism for selectively positioning in cooperation with the projection on said carriage said stop elements for cooperation with said projection, and a single means to render all of said elements inefiective simultaneously.

5. In a printing telegraph machine, a carriage, means for advancing said carriage continuously to efiect spacing movements thereof, a spacing mechanism to limit the movement of said carriage to a" single character space at a time, selectively controlled means for rendering said spacing mechanism ineiiective to limit the movement of said carriage to single spaces, a pair of stationary pivots, a rotatable stop means carried on said pivots and comprising a plurality of stop elements independently rotatable thereon for limiting the movement of said carriage, and selectively controlled means for rotating said stop means about said pivots into cooperation with said carriage to actuate a selected one of said stop elements to determine the periods of inefiectiveness of said spacing mechanism.

6. In a printing telegraph apparatus, a selecting mechanism, a printing mechanism controlled by said selecting mechanism, a carriage coacting with said printing mechanism, a spacing mechanism for advancing said carriage one space at a time, a tabulating mechanism controlled by said selecting mechanism for causing said carriage to advance through a plurality of spaces at a time, a pair of stationary pivots, a rotatable stop means carried on said pivots and comprising a plurality of stop elements independently rotatable thereon for arresting the advancement of said carriage, and means controlled by said selecting mechanism for rotating said stop means about its stationary pivots into cooperation with said carriage to actuate a selected one of said stop elements to determine selectively the degree of advancement of said carriage.

7. In a telegraph recorder, a movable type carriage, a stationary platen, means for restraining the movement of said carriage to one character space for each recording operation, code signal controlled means including a tabulator function lever, means controlled by said function lever for disabling said restraining means to enable non-intermittent movement of said carriage a predetermined plurality of character spaces at a time, and further code signal controlled means to determine through cooperation with said carriage the extents of said non-intermittent movements.

8. In a telegraph system, transmitting and receiving apparatus at each of a plurality of stations, variably settable tabulating mechanism in each receiver comprising a plurality of stops having a normal and a set position, means to transmit signals from any station to any other, signal controlled means to vary the setting of the tabulating mechanism at all stations simultaneously, and means responsive to a single signal to return all stops to normal position.

9. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable relative to said platen and including type elements cooperating therewith for effecting recording operations, a member projecting horizontally from said carriage and movable therewith, a plurality of pivotally mounted stop elements, one for each character space of said carriage, and means operated in accordance with the operation of said selector mechanism in response to a predetermined code combination of signaling impulses for causing a pivotally mounted element to engage said member and to be rotated into a position to effect thereafter the stoppage of said carriage in that position.

10. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable relative to said platen and including type elements cooperating therewith for eifecting recording operations, a member projecting horizontally from said carriage and movable therewith, a plurality of pivotally mounted stop elements, one for each character space of said carriage, means operated in accordance with the operation of said selector mechanism in response to a predetermined code combination of signaling impulses for causing a pivotally mounted element to engage said'member and to be rotated into a carriage stopping position, and means carried by said carriage and engaged by said element for stopping said carriage in that position.

11. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable relative to said platen and including type elements cooperating therewith for effecting recording operations, a member projecting horizontally from said carriage and movable therewith, a bail extending parallel to said platen, a rod carried by said ball, a plurality of stop elements rotatably mounted on said rod, and means operated in accordance with the operation of said selector mechanism in response to a predetermined code combination for operating said bail to cause a stop element mounted on said rod to engage said member and to be rotated into a position to effect thereafter the stoppage of said carriage in that position.

12. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable relative to said platen and including type elements cooperating therewith for effecting recording operations, a member projecting horizontally from said carriage and movable therewith, a bail extending parallel to said platen, a rod carried by said bail, a plurality of stop elements rotatably mounted on said rod, means operated in accordance with the operation of said selector mechanism in response to a predetermined code combination for operating said bail to cause a stop element mounted on said rod to engage said member and to be rotated into a position to effect thereafter the stoppage of said carriage in that position, and means cooperating with said elements for retaining the elements in their set position.

13. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable relative to said platen and including type elements cooperating therewith for eifecting recording operations, a member projecting horizontally from said carriage and movable therewith, a bail extending parallel to said platen, a rod carried by said bail, a plurality of stop elements rotatably mounted on said rod, means operated in accordance with the operation of said selector mechanism in response to a predetermined code combination, and means operated through the operation of said last recited means for operating said bail whereby an element pivotally mounted on the rod carried thereby will engage said member and be rotated into a position to effect thereafter the stoppage of said carriage in that position.

14. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable relative to said platen and including type elements cooperating therewith for effecting recording operations, a member projecting horizontally from said carriage and movable therewith, a plurality of pivotally mounted stop elements, one for each character space of said carriage, means operated in accordance with the operation of said selector mechanism in response to a predetermined code combination of signaling impulses for causing a pivotally mounted element to engage said member and to be rotated into a position to efiect thereafter the stoppage of said carriage in that position, and means responsive to a predetermined code combination of signaling impulses for restoring said elements to their normal position.

15. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable relative to said platen and including type elements cooperating therewith for effecting recording operations, a member projecting horizontally from said carriage and movable therewith, a plurality of pivotally mounted stop elements, one for each character space of said carriage, means operated in accordance with the operation of said selector mechanism in response to a predetermined code combination of signaling impulses for causing a pivotally mounted element to engage said member and to be rotated into a position to efiect thereafter the stoppage of said carriage in that position, means responsive to a predetermined code combination of signaling impulses for restoring said elements to their normal position, and means cooperating with said elements for retainin the elements in their normal position and from which said elements may be subsequently operated.

16.,Tn a recorder, selector mechanism embodied therein and responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable normally one character space for each recording operation and cooperating with said platen, a plurality of stop elements mounted separate from said carriage, one allotted to each character space, and means controlled by said selector mechanism in response to a code combination of signaling impulses for a particular function operation to actuate a stop element to a tabular position under the control of said carriage.

17. In a recorder, selector mechanism embodied therein and responsive to code combinations of signaling impulses to control recording and functional operations, a carriage movable normally one character space for each recording operation, a bail, a plurality of carriage stop elements, one allotted to each character space, carried by said bail, a stop cooperating instrumentality mounted on said carriage, and means controlled by said selector mechanism in response to a particular code combination of signaling impulses for operating said bail to operate all of said stop elements collectively whereby one of said stop elements through cooperation with said instrumentality will be set to control thereafter the stop position of the carriage.

18. In a telegraph system, a plurality of stations, a single line conductor connecting said stations, transmitting apparatus at each of said stations for transmitting code combinations of signaling impulses successively over said line conductor, receiving apparatus at each station responsive to the impulses transmitted from the other station over said line conductor comprising a carriage movable for character spacing, a plurality of means for determing the tabular position of said carriage, an instrumentality mounted on said carriage for cooperating with said tabular determining means, and means responsive to a particular code combination of impulses impressed successively on said line conductor for operating said tabular determining means collectively toward said instrumentality to selectively set in cooperation with said instrumentality said tabular determining means.

19. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable with respect to said platen and including elements cooperating therewith for effecting printing operations, means for moving said carriage one character space for each recording operation, a plurality of stop elements fixedly positioned with respect to said movable carriage, and means operated in response to the actuation of said selector mechanism for a particular code combination of signaling impulses to operate one of said stop elements in accordance with the then position of said carriage.

20. In a recorder, selector mechanism responsive to code combinations of signaling impulses to control recording and functional operations, a platen, a type carriage movable relative to said platen and including type elements cooperating therewith for effecting recording operations in response to the operation of the selector mechanism, a member carried by and movable with said carriage, a plurality of stop elements which when predeterminedly set determine the position of said carriage, means operated in accordance with the operation of said selector mechanism in response to a predetermined code combination of signaling impulses for causing one of said stop elements to be set through its cooperation with the member carried by said carriage, and means mounted on said carriage and cooperating with the actuated stop element for stopping said carriage.

21. In a signal controlled printing device, means to record in different columns in page form, a series of stops to control, in response to a single signal, the motion from one column to another, signal controlled means to set the stops according to the arrangement of columns desired, and means responsive to a single signal to return all stops to ineffective position.

22. In a recorder, a single magnet in said recorder responsive to code combinations of signaling impulses, an entirely mechanical permutation code bar selector mechanism integrally embodied in said recorder and controlled solely by said single magnet, a carriage movable normally one character space for each recording operation, a tabulator mechanism in said recorder directly associated mechanically with said selecting mechanism, said tabulator mechanism comprising a tabulator bar cooperatively associated with said carriage, a plurality of stop elements carried on said bar, each stop element identified individually with a character spacing position of said carriage, a stop setting projection on said carriage cooperable with said stop elements, means controlled by said selector mechanism and cooperable with said stop setting projection for selectively positioning said stop elements for cooperation with said carriage, and means controlled by said selector mechanism for causing said carriage to pass uninterruptedly through a plurality of spaces at a time under the control of said stop elements.

LOUIS M. POTTS. 

